> be handled by the Operating System. SCSI drives (if reformatted
> occasionally) do not.
Where "occasionally" is defined in years for continuously operating drives.
> Note that with any re-mapping scheme, you can run out of good
> sectors to re-map. Low-level formatting of a SCSI Drive will
> clean up the drive, leaving only permanent bad-sectors re-mapped.
It also gives you the option of changing the sector reservations on some
drives (my quantum atlas I claims to have this ability, but I'm not going
to erase 4.3 gig to find out...)
> a PC Board that contains a uP, some RAM, some program ROM, and
Some drives have more RAM (read: cache) than others. SCSI disks have cache
in the range of 512k to 4096k. IDE drives has caches in the range of 64k
to 512k (there may be some with 1024k; IDE drives change to fast.)
SCSI offers more functionality than IDE -- i.e. there are more and more
varied commands for SCSI drives. Let's see you pattern reformat an IDE
drive using a different sector size while ignoring the defect map(s) as
simple as doing the same to a SCSI drive...
--Ricky
Wanna have fun, low-level the active system drive... oops.